The abbey itself was founded by
Gilbert de Gant, on 12 July 1147, and populated with
Cistercian monks from
Rievaulx Abbey in Yorkshire. The English Pope,
Adrian IV gave the blessing for the abbey in 1156, following which the abbey's lands expanded and the villagers of
Cratley,
Grimston,
Rufford, and
Inkersall were evicted. A new village of
Wellow, just outside the estate housed some of the displaced people. The
Valor Ecclesiasticus of 1534 gives the gross income of the abbey as £254 6s. 8d. (), and the clear annual value as £176 11s. 6d. (). Abbot Doncaster obtained a pension of £25 a year, on the dissolution of the house in 1536 among the lesser monasteries, but it was voided on his speedy appointment to the
rectory of Rotherham on 2 July 1536. After its dissolution, the abbey gained a reputation of being haunted by the spectre of a giant monk carrying a skull. ; Abbots of Rufford • Philip de Kyme, temp. Stephen • Edward, 1203 • Geoffrey, c. temp. John, 1218, &c. • Thomas • Simon, c. 1232 • G—, c. 1239 • Geoffrey, c. 1252 • William, c. 1259 • Henry, 1278 • Thomas de Stayngreve, c. 1283 • Henry, c. 1288 • Henry de Tring, c. 1315 • Elias Lyvet (
Levett), c. 1332 • Robert de Mapelbek, 1352 • Thomas, 1366 • John de Harlesay, 1372 • John de Farnsfeld, 1394 • Thomas Sewally, c. 1400 • Robert de Welles, 1421 • Robert Warthill, died 1456 • William Cresswell, 1456 • John Pomfrat, died 1462 • John Lilly, 1462 • John Greyne, 1465 • Roland Bliton, 1516 • Thomas Doncaster, last abbot ==Country house==